he was best known as larger than life texan j.r. ewing on the popular nighttime soap opera "dallas." he first became known to a national audience in the 1960s playing an astronaut living with a jeanie in "i dream of jeannie." fans stopped by the real south fork ranch today to pay tribute to hagman and the character for which he was so very famous. >> watching it, every single one. my parent, me, my sister. we couldn't wait for "dallas." >> a very sad day, but nonetheless, it's just very amazing how the show has endured for so long. and it just will live forever. >> hagman had health setbacks in the 1990s when he suffered from cirrhosis of the liver. in 1995, he received a liver transplant that saved his life. after that, hagman used his celebrity to raise awareness of organ donation. hagman was 81 years old. >>> training for a triathlon is a huge commitment. and for most triathletes, it is really about competing. but for other triathletes, there is a different motivation. garvin thomas introduces us to an east bay man with a unique